[codeview] Translate basic DITypes to CV type records

Summary:
This is meant to be the tiniest step towards DIType to CV type index
translation that I could come up with. Whenever translation fails, we use type
index zero, which is the unknown type.

Reviewers: aaboud, zturner

Subscribers: llvm-commits, amccarth

Differential Revision: http://reviews.llvm.org/D20840

llvm-svn: 271408
This commit is contained in:
Reid Kleckner 2016-06-01 17:05:51 +00:00
parent 10df497a1f
commit 5acacbb04f
4 changed files with 655 additions and 34 deletions

View File

@ -230,8 +230,6 @@ void CodeViewDebug::endModule() {
if (FnDebugInfo.empty())
return;
emitTypeInformation();
assert(Asm != nullptr);
// The COFF .debug$S section consists of several subsections, each starting
@ -258,6 +256,10 @@ void CodeViewDebug::endModule() {
OS.AddComment("String table");
OS.EmitCVStringTableDirective();
// Emit type information last, so that any types we translate while emitting
// function info are included.
emitTypeInformation();
clear();
}
@ -726,6 +728,214 @@ void CodeViewDebug::beginFunction(const MachineFunction *MF) {
}
}
TypeIndex CodeViewDebug::lowerType(const DIType *Ty) {
// Generic dispatch for lowering an unknown type.
switch (Ty->getTag()) {
case dwarf::DW_TAG_base_type:
return lowerTypeBasic(cast<DIBasicType>(Ty));
case dwarf::DW_TAG_pointer_type:
case dwarf::DW_TAG_reference_type:
case dwarf::DW_TAG_rvalue_reference_type:
return lowerTypePointer(cast<DIDerivedType>(Ty));
case dwarf::DW_TAG_ptr_to_member_type:
return lowerTypeMemberPointer(cast<DIDerivedType>(Ty));
case dwarf::DW_TAG_const_type:
case dwarf::DW_TAG_volatile_type:
return lowerTypeModifier(cast<DIDerivedType>(Ty));
default:
// Use the null type index.
return TypeIndex();
}
}
TypeIndex CodeViewDebug::lowerTypeBasic(const DIBasicType *Ty) {
TypeIndex Index;
dwarf::TypeKind Kind;
uint32_t ByteSize;
Kind = static_cast<dwarf::TypeKind>(Ty->getEncoding());
ByteSize = Ty->getSizeInBits() >> 3;
SimpleTypeKind STK = SimpleTypeKind::None;
switch (Kind) {
case dwarf::DW_ATE_address:
// FIXME: Translate
break;
case dwarf::DW_ATE_boolean:
switch (ByteSize) {
case 1: STK = SimpleTypeKind::Boolean8; break;
case 2: STK = SimpleTypeKind::Boolean16; break;
case 4: STK = SimpleTypeKind::Boolean32; break;
case 8: STK = SimpleTypeKind::Boolean64; break;
}
break;
case dwarf::DW_ATE_complex_float:
switch (ByteSize) {
case 4: STK = SimpleTypeKind::Complex32; break;
case 8: STK = SimpleTypeKind::Complex64; break;
case 10: STK = SimpleTypeKind::Complex80; break;
case 16: STK = SimpleTypeKind::Complex128; break;
}
break;
case dwarf::DW_ATE_float:
switch (ByteSize) {
case 4: STK = SimpleTypeKind::Float32; break;
case 6: STK = SimpleTypeKind::Float48; break;
case 8: STK = SimpleTypeKind::Float64; break;
case 10: STK = SimpleTypeKind::Float80; break;
case 16: STK = SimpleTypeKind::Float128; break;
}
break;
case dwarf::DW_ATE_signed:
switch (ByteSize) {
case 1: STK = SimpleTypeKind::SByte; break;
case 2: STK = SimpleTypeKind::Int16Short; break;
case 4: STK = SimpleTypeKind::Int32; break;
case 8: STK = SimpleTypeKind::Int64; break;
}
break;
case dwarf::DW_ATE_unsigned:
switch (ByteSize) {
case 1: STK = SimpleTypeKind::Byte; break;
case 2: STK = SimpleTypeKind::UInt16Short; break;
case 4: STK = SimpleTypeKind::UInt32; break;
case 8: STK = SimpleTypeKind::UInt64; break;
}
break;
case dwarf::DW_ATE_UTF:
switch (ByteSize) {
case 2: STK = SimpleTypeKind::Character16; break;
case 4: STK = SimpleTypeKind::Character32; break;
}
break;
case dwarf::DW_ATE_signed_char:
if (ByteSize == 1)
STK = SimpleTypeKind::SignedCharacter;
break;
case dwarf::DW_ATE_unsigned_char:
if (ByteSize == 1)
STK = SimpleTypeKind::UnsignedCharacter;
break;
default:
break;
}
// Apply some fixups based on the source-level type name.
if (STK == SimpleTypeKind::Int32 && Ty->getName() == "long int")
STK = SimpleTypeKind::Int32Long;
if (STK == SimpleTypeKind::UInt32 && Ty->getName() == "long unsigned int")
STK = SimpleTypeKind::UInt32Long;
if ((STK == SimpleTypeKind::Int16Short ||
STK == SimpleTypeKind::UInt16Short) &&
Ty->getName() == "wchar_t")
STK = SimpleTypeKind::WideCharacter;
if ((STK == SimpleTypeKind::SignedCharacter ||
STK == SimpleTypeKind::UnsignedCharacter) &&
Ty->getName() == "char")
STK = SimpleTypeKind::NarrowCharacter;
return TypeIndex(STK);
}
TypeIndex CodeViewDebug::lowerTypePointer(const DIDerivedType *Ty) {
TypeIndex PointeeTI = getTypeIndex(Ty->getBaseType());
// Pointers to simple types can use SimpleTypeMode, rather than having a
// dedicated pointer type record.
if (PointeeTI.isSimple() &&
PointeeTI.getSimpleMode() == SimpleTypeMode::Direct &&
Ty->getTag() == dwarf::DW_TAG_pointer_type) {
SimpleTypeMode Mode = Ty->getSizeInBits() == 64
? SimpleTypeMode::NearPointer64
: SimpleTypeMode::NearPointer32;
return TypeIndex(PointeeTI.getSimpleKind(), Mode);
}
PointerKind PK =
Ty->getSizeInBits() == 64 ? PointerKind::Near64 : PointerKind::Near32;
PointerMode PM = PointerMode::Pointer;
switch (Ty->getTag()) {
default: llvm_unreachable("not a pointer tag type");
case dwarf::DW_TAG_pointer_type:
PM = PointerMode::Pointer;
break;
case dwarf::DW_TAG_reference_type:
PM = PointerMode::LValueReference;
break;
case dwarf::DW_TAG_rvalue_reference_type:
PM = PointerMode::RValueReference;
break;
}
// FIXME: MSVC folds qualifiers into PointerOptions in the context of a method
// 'this' pointer, but not normal contexts. Figure out what we're supposed to
// do.
PointerOptions PO = PointerOptions::None;
PointerRecord PR(PointeeTI, PK, PM, PO, Ty->getSizeInBits() / 8);
return TypeTable.writePointer(PR);
}
TypeIndex CodeViewDebug::lowerTypeMemberPointer(const DIDerivedType *Ty) {
assert(Ty->getTag() == dwarf::DW_TAG_ptr_to_member_type);
TypeIndex ClassTI = getTypeIndex(Ty->getClassType());
TypeIndex PointeeTI = getTypeIndex(Ty->getBaseType());
PointerKind PK = Asm->MAI->getPointerSize() == 8 ? PointerKind::Near64
: PointerKind::Near32;
PointerMode PM = isa<DISubroutineType>(Ty->getBaseType())
? PointerMode::PointerToMemberFunction
: PointerMode::PointerToDataMember;
PointerOptions PO = PointerOptions::None; // FIXME
// FIXME: Thread this ABI info through metadata.
PointerToMemberRepresentation PMR = PointerToMemberRepresentation::Unknown;
MemberPointerInfo MPI(ClassTI, PMR);
PointerRecord PR(PointeeTI, PK, PM, PO, Ty->getSizeInBits() / 8, MPI);
return TypeTable.writePointer(PR);
}
TypeIndex CodeViewDebug::lowerTypeModifier(const DIDerivedType *Ty) {
ModifierOptions Mods = ModifierOptions::None;
bool IsModifier = true;
const DIType *BaseTy = Ty;
while (IsModifier) {
assert(BaseTy);
// FIXME: Need to add DWARF tag for __unaligned.
switch (BaseTy->getTag()) {
case dwarf::DW_TAG_const_type:
Mods |= ModifierOptions::Const;
break;
case dwarf::DW_TAG_volatile_type:
Mods |= ModifierOptions::Volatile;
break;
default:
IsModifier = false;
break;
}
if (IsModifier)
BaseTy = cast<DIDerivedType>(BaseTy)->getBaseType().resolve();
}
TypeIndex ModifiedTI = getTypeIndex(BaseTy);
ModifierRecord MR(ModifiedTI, Mods);
return TypeTable.writeModifier(MR);
}
TypeIndex CodeViewDebug::getTypeIndex(DITypeRef TypeRef) {
const DIType *Ty = TypeRef.resolve();
// The null DIType is the void type. Don't try to hash it.
if (!Ty)
return TypeIndex::Void();
// Check if we've already translated this type.
auto I = TypeIndices.find(Ty);
if (I != TypeIndices.end())
return I->second;
TypeIndex TI = lowerType(Ty);
auto InsertResult = TypeIndices.insert({Ty, TI});
assert(InsertResult.second && "DIType lowered twice");
return TI;
}
void CodeViewDebug::emitLocalVariable(const LocalVariable &Var) {
// LocalSym record, see SymbolRecord.h for more info.
MCSymbol *LocalBegin = MMI->getContext().createTempSymbol(),
@ -744,7 +954,8 @@ void CodeViewDebug::emitLocalVariable(const LocalVariable &Var) {
Flags |= LocalSymFlags::IsOptimizedOut;
OS.AddComment("TypeIndex");
OS.EmitIntValue(TypeIndex::Int32().getIndex(), 4);
TypeIndex TI = getTypeIndex(Var.DIVar->getType());
OS.EmitIntValue(TI.getIndex(), 4);
OS.AddComment("Flags");
OS.EmitIntValue(static_cast<uint16_t>(Flags), 2);
// Truncate the name so we won't overflow the record length field.

View File

@ -185,6 +185,16 @@ class LLVM_LIBRARY_VISIBILITY CodeViewDebug : public DebugHandlerBase {
void emitLocalVariable(const LocalVariable &Var);
/// Translates the DIType to codeview if necessary and returns a type index
/// for it.
codeview::TypeIndex getTypeIndex(DITypeRef Ty);
codeview::TypeIndex lowerType(const DIType *Ty);
codeview::TypeIndex lowerTypeBasic(const DIBasicType *Ty);
codeview::TypeIndex lowerTypePointer(const DIDerivedType *Ty);
codeview::TypeIndex lowerTypeMemberPointer(const DIDerivedType *Ty);
codeview::TypeIndex lowerTypeModifier(const DIDerivedType *Ty);
public:
CodeViewDebug(AsmPrinter *Asm);

View File

@ -39,6 +39,36 @@
; ASM: addl $7, "?x@@3HC"
; ASM: .cv_loc 0 1 17 1 # t.cpp:17:1
; ASM: .section .debug$S,"dr"
; ASM: .long 246 # Inlinee lines subsection
; ASM: .long [[inline_end:.*]]-[[inline_beg:.*]] #
; ASM: [[inline_beg]]:
; ASM: .long 0
; ASM: # Inlined function bar starts at t.cpp:8
; ASM: .long 4098 # Type index of inlined function
; ASM: .long 0 # Offset into filechecksum table
; ASM: .long 8 # Starting line number
; ASM: # Inlined function foo starts at t.cpp:2
; ASM: .long 4099
; ASM: .long 0
; ASM: .long 2
; ASM: [[inline_end]]:
; ASM: .long 241 # Symbol subsection for baz
; ASM: .long {{.*}} # Subsection size
; ASM: .short 4429
; ASM: .long
; ASM: .long
; ASM: .long
; ASM: .cv_inline_linetable 1 1 8 Lfunc_begin0 Lfunc_end0 contains 2
; ASM: .short 4429
; ASM: .long
; ASM: .long
; ASM: .long
; ASM: .cv_inline_linetable 2 1 2 Lfunc_begin0 Lfunc_end0
; ASM: .short 4430
; ASM: .short 4430
; ASM: .section .debug$T,"dr"
; ASM: .long 4 # Debug section magic
; ASM: # ArgList (0x1000) {
@ -83,39 +113,9 @@
; ASM: .byte 0x01, 0x10, 0x00, 0x00
; ASM: .byte 0x66, 0x6f, 0x6f, 0x00
; ASM: .section .debug$S,"dr"
; ASM: .long 246 # Inlinee lines subsection
; ASM: .long [[inline_end:.*]]-[[inline_beg:.*]] #
; ASM: [[inline_beg]]:
; ASM: .long 0
; ASM: # Inlined function bar starts at t.cpp:8
; ASM: .long 4098 # Type index of inlined function
; ASM: .long 0 # Offset into filechecksum table
; ASM: .long 8 # Starting line number
; ASM: # Inlined function foo starts at t.cpp:2
; ASM: .long 4099
; ASM: .long 0
; ASM: .long 2
; ASM: [[inline_end]]:
; ASM: .long 241 # Symbol subsection for baz
; ASM: .long {{.*}} # Subsection size
; ASM: .short 4429
; ASM: .long
; ASM: .long
; ASM: .long
; ASM: .cv_inline_linetable 1 1 8 Lfunc_begin0 Lfunc_end0 contains 2
; ASM: .short 4429
; ASM: .long
; ASM: .long
; ASM: .long
; ASM: .cv_inline_linetable 2 1 2 Lfunc_begin0 Lfunc_end0
; ASM: .short 4430
; ASM: .short 4430
; We should only the LF_FUNC_ID records that we needed to reference.
; OBJ: CodeViewTypes [
; OBJ: Section: .debug$T (4)
; OBJ: Section: .debug$T
; OBJ: ArgList (0x1000) {
; OBJ: TypeLeafKind: LF_ARGLIST (0x1201)
; OBJ: NumArgs: 0

View File

@ -0,0 +1,400 @@
; RUN: llc < %s -filetype=obj | llvm-readobj - -codeview | FileCheck %s
; C++ source to regenerate:
; $ cat t.cpp
; struct A {
; int a;
; void f();
; };
; void usevars(int, ...);
; void f(float p1, double p2, long long p3) {
; int v1 = p3;
; int *v2 = &v1;
; const int *v21 = &v1;
; void *v3 = &v1;
; int A::*v4 = &A::a;
; void (A::*v5)() = &A::f;
; long l1 = 0;
; long int l2 = 0;
; unsigned long l3 = 0;
; unsigned long int l4 = 0;
; usevars(v1, v2, v3, l1, l2, l3, l4);
; }
; void CharTypes() {
; signed wchar_t w;
; unsigned short us;
; char c;
; unsigned char uc;
; signed char sc;
; char16_t c16;
; char32_t c32;
; }
; $ clang t.cpp -S -emit-llvm -g -gcodeview -o t.ll
; CHECK: CodeViewTypes [
; CHECK: Modifier (0x1000) {
; CHECK: TypeLeafKind: LF_MODIFIER (0x1001)
; CHECK: ModifiedType: int (0x74)
; CHECK: Modifiers [ (0x1)
; CHECK: Const (0x1)
; CHECK: ]
; CHECK: }
; CHECK: Pointer (0x1001) {
; CHECK: TypeLeafKind: LF_POINTER (0x1002)
; CHECK: PointeeType: const int (0x1000)
; CHECK: PointerAttributes: 0x1000C
; CHECK: PtrType: Near64 (0xC)
; CHECK: PtrMode: Pointer (0x0)
; CHECK: IsFlat: 0
; CHECK: IsConst: 0
; CHECK: IsVolatile: 0
; CHECK: IsUnaligned: 0
; CHECK: }
; CHECK: Pointer (0x1002) {
; CHECK: TypeLeafKind: LF_POINTER (0x1002)
; CHECK: PointeeType: int (0x74)
; CHECK: PointerAttributes: 0x804C
; CHECK: PtrType: Near64 (0xC)
; CHECK: PtrMode: PointerToDataMember (0x2)
; CHECK: IsFlat: 0
; CHECK: IsConst: 0
; CHECK: IsVolatile: 0
; CHECK: IsUnaligned: 0
; CHECK: ClassType: 0x0
; CHECK: Representation: Unknown (0x0)
; CHECK: }
; CHECK: Pointer (0x1003) {
; CHECK: TypeLeafKind: LF_POINTER (0x1002)
; CHECK: PointeeType: 0x0
; CHECK: PointerAttributes: 0x1006C
; CHECK: PtrType: Near64 (0xC)
; CHECK: PtrMode: PointerToMemberFunction (0x3)
; CHECK: IsFlat: 0
; CHECK: IsConst: 0
; CHECK: IsVolatile: 0
; CHECK: IsUnaligned: 0
; CHECK: ClassType: 0x0
; CHECK: Representation: Unknown (0x0)
; CHECK: }
; CHECK: ]
; CHECK: CodeViewDebugInfo [
; CHECK: Subsection [
; CHECK: SubSectionType: Symbols (0xF1)
; CHECK: ProcStart {
; CHECK: DbgStart: 0x0
; CHECK: DbgEnd: 0x0
; CHECK: FunctionType: 0x0
; CHECK: CodeOffset: ?f@@YAXMN_J@Z+0x0
; CHECK: Segment: 0x0
; CHECK: Flags [ (0x0)
; CHECK: ]
; CHECK: DisplayName: f
; CHECK: LinkageName: ?f@@YAXMN_J@Z
; CHECK: }
; CHECK: Local {
; CHECK: Type: __int64 (0x76)
; CHECK: Flags [ (0x1)
; CHECK: IsParameter (0x1)
; CHECK: ]
; CHECK: VarName: p3
; CHECK: }
; CHECK: Local {
; CHECK: Type: double (0x41)
; CHECK: Flags [ (0x1)
; CHECK: IsParameter (0x1)
; CHECK: ]
; CHECK: VarName: p2
; CHECK: }
; CHECK: Local {
; CHECK: Type: float (0x40)
; CHECK: Flags [ (0x1)
; CHECK: IsParameter (0x1)
; CHECK: ]
; CHECK: VarName: p1
; CHECK: }
; CHECK: Local {
; CHECK: Type: int (0x74)
; CHECK: VarName: v1
; CHECK: }
; CHECK: Local {
; CHECK: Type: int* (0x674)
; CHECK: VarName: v2
; CHECK: }
; CHECK: Local {
; CHECK: Type: const int* (0x1001)
; CHECK: VarName: v21
; CHECK: }
; CHECK: Local {
; CHECK: Type: void* (0x603)
; CHECK: VarName: v3
; CHECK: }
; CHECK: Local {
; CHECK: Type: int <no type>::* (0x1002)
; CHECK: VarName: v4
; CHECK: }
; CHECK: Local {
; CHECK: Type: <no type> <no type>::* (0x1003)
; CHECK: VarName: v5
; CHECK: }
; CHECK: Local {
; CHECK: Type: long (0x12)
; CHECK: VarName: l1
; CHECK: }
; CHECK: Local {
; CHECK: Type: long (0x12)
; CHECK: VarName: l2
; CHECK: }
; CHECK: Local {
; CHECK: Type: unsigned long (0x22)
; CHECK: VarName: l3
; CHECK: }
; CHECK: Local {
; CHECK: Type: unsigned long (0x22)
; CHECK: VarName: l4
; CHECK: }
; CHECK: ProcEnd {
; CHECK: }
; CHECK: ]
; CHECK: Subsection [
; CHECK: ProcStart {
; CHECK: DisplayName: CharTypes
; CHECK: LinkageName: ?CharTypes@@YAXXZ
; CHECK: }
; CHECK: Local {
; CHECK: Type: wchar_t (0x71)
; CHECK: Flags [ (0x0)
; CHECK: ]
; CHECK: VarName: w
; CHECK: }
; CHECK: Local {
; CHECK: Type: unsigned short (0x21)
; CHECK: Flags [ (0x0)
; CHECK: ]
; CHECK: VarName: us
; CHECK: }
; CHECK: Local {
; CHECK: Type: char (0x70)
; CHECK: Flags [ (0x0)
; CHECK: ]
; CHECK: VarName: c
; CHECK: }
; CHECK: Local {
; CHECK: Type: unsigned char (0x20)
; CHECK: Flags [ (0x0)
; CHECK: ]
; CHECK: VarName: uc
; CHECK: }
; CHECK: Local {
; CHECK: Type: signed char (0x10)
; CHECK: Flags [ (0x0)
; CHECK: ]
; CHECK: VarName: sc
; CHECK: }
; CHECK: Local {
; CHECK: Type: char16_t (0x7A)
; CHECK: Flags [ (0x0)
; CHECK: ]
; CHECK: VarName: c16
; CHECK: }
; CHECK: Local {
; CHECK: Type: char32_t (0x7B)
; CHECK: Flags [ (0x0)
; CHECK: ]
; CHECK: VarName: c32
; CHECK: }
; CHECK: ProcEnd {
; CHECK: }
; CHECK: ]
; CHECK: ]
; ModuleID = 't.cpp'
source_filename = "t.cpp"
target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-windows-msvc19.0.23918"
%struct.A = type { i32 }
; Function Attrs: uwtable
define void @"\01?f@@YAXMN_J@Z"(float %p1, double %p2, i64 %p3) #0 !dbg !7 {
entry:
%p3.addr = alloca i64, align 8
%p2.addr = alloca double, align 8
%p1.addr = alloca float, align 4
%v1 = alloca i32, align 4
%v2 = alloca i32*, align 8
%v21 = alloca i32*, align 8
%v3 = alloca i8*, align 8
%v4 = alloca i32, align 8
%v5 = alloca i8*, align 8
%l1 = alloca i32, align 4
%l2 = alloca i32, align 4
%l3 = alloca i32, align 4
%l4 = alloca i32, align 4
store i64 %p3, i64* %p3.addr, align 8
call void @llvm.dbg.declare(metadata i64* %p3.addr, metadata !13, metadata !14), !dbg !15
store double %p2, double* %p2.addr, align 8
call void @llvm.dbg.declare(metadata double* %p2.addr, metadata !16, metadata !14), !dbg !17
store float %p1, float* %p1.addr, align 4
call void @llvm.dbg.declare(metadata float* %p1.addr, metadata !18, metadata !14), !dbg !19
call void @llvm.dbg.declare(metadata i32* %v1, metadata !20, metadata !14), !dbg !22
%0 = load i64, i64* %p3.addr, align 8, !dbg !23
%conv = trunc i64 %0 to i32, !dbg !23
store i32 %conv, i32* %v1, align 4, !dbg !22
call void @llvm.dbg.declare(metadata i32** %v2, metadata !24, metadata !14), !dbg !26
store i32* %v1, i32** %v2, align 8, !dbg !26
call void @llvm.dbg.declare(metadata i32** %v21, metadata !27, metadata !14), !dbg !30
store i32* %v1, i32** %v21, align 8, !dbg !30
call void @llvm.dbg.declare(metadata i8** %v3, metadata !31, metadata !14), !dbg !33
%1 = bitcast i32* %v1 to i8*, !dbg !34
store i8* %1, i8** %v3, align 8, !dbg !33
call void @llvm.dbg.declare(metadata i32* %v4, metadata !35, metadata !14), !dbg !44
store i32 0, i32* %v4, align 8, !dbg !44
call void @llvm.dbg.declare(metadata i8** %v5, metadata !45, metadata !14), !dbg !47
store i8* bitcast (void (%struct.A*)* @"\01?f@A@@QEAAXXZ" to i8*), i8** %v5, align 8, !dbg !47
call void @llvm.dbg.declare(metadata i32* %l1, metadata !48, metadata !14), !dbg !50
store i32 0, i32* %l1, align 4, !dbg !50
call void @llvm.dbg.declare(metadata i32* %l2, metadata !51, metadata !14), !dbg !52
store i32 0, i32* %l2, align 4, !dbg !52
call void @llvm.dbg.declare(metadata i32* %l3, metadata !53, metadata !14), !dbg !55
store i32 0, i32* %l3, align 4, !dbg !55
call void @llvm.dbg.declare(metadata i32* %l4, metadata !56, metadata !14), !dbg !57
store i32 0, i32* %l4, align 4, !dbg !57
%2 = load i32, i32* %l4, align 4, !dbg !58
%3 = load i32, i32* %l3, align 4, !dbg !59
%4 = load i32, i32* %l2, align 4, !dbg !60
%5 = load i32, i32* %l1, align 4, !dbg !61
%6 = load i8*, i8** %v3, align 8, !dbg !62
%7 = load i32*, i32** %v2, align 8, !dbg !63
%8 = load i32, i32* %v1, align 4, !dbg !64
call void (i32, ...) @"\01?usevars@@YAXHZZ"(i32 %8, i32* %7, i8* %6, i32 %5, i32 %4, i32 %3, i32 %2), !dbg !65
ret void, !dbg !66
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
declare void @"\01?f@A@@QEAAXXZ"(%struct.A*) #2
declare void @"\01?usevars@@YAXHZZ"(i32, ...) #2
; Function Attrs: nounwind uwtable
define void @"\01?CharTypes@@YAXXZ"() #3 !dbg !67 {
entry:
%w = alloca i16, align 2
%us = alloca i16, align 2
%c = alloca i8, align 1
%uc = alloca i8, align 1
%sc = alloca i8, align 1
%c16 = alloca i16, align 2
%c32 = alloca i32, align 4
call void @llvm.dbg.declare(metadata i16* %w, metadata !70, metadata !14), !dbg !72
call void @llvm.dbg.declare(metadata i16* %us, metadata !73, metadata !14), !dbg !75
call void @llvm.dbg.declare(metadata i8* %c, metadata !76, metadata !14), !dbg !78
call void @llvm.dbg.declare(metadata i8* %uc, metadata !79, metadata !14), !dbg !81
call void @llvm.dbg.declare(metadata i8* %sc, metadata !82, metadata !14), !dbg !84
call void @llvm.dbg.declare(metadata i16* %c16, metadata !85, metadata !14), !dbg !87
call void @llvm.dbg.declare(metadata i32* %c32, metadata !88, metadata !14), !dbg !90
ret void, !dbg !91
}
attributes #0 = { uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { nounwind readnone }
attributes #2 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #3 = { nounwind uwtable "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.module.flags = !{!3, !4, !5}
!llvm.ident = !{!6}
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!1 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild")
!2 = !{}
!3 = !{i32 2, !"CodeView", i32 1}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = !{i32 1, !"PIC Level", i32 2}
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